Not having any luck with general searches on this so hoping someone here may have a suggestion.
The issue is that, when watching YouTube live streams (e.g. Post Office enquiry!) in Safari, if I open another window to do something "in front" of the Safari window (e.g. WhatsApp, email, etc), the video of the YouTube stream starts stuttering really badly and eventually freezes.
I've used MacBooks for decades and never had this sort of problem. On way less powerful machines (also with integrated graphics) I could work on as many apps as I liked and not interfered with "background" streaming. Internet is fibre 130mbps and wifi is working at full throttle.
?